6 hombre trabajando durante 9 dias , a razon de 8 horas diarias han echo los 8/8 de una obra . Si se refuerzan con 4 hombres , y los obreros trabajan ahora 6 horas diarias , ¿ En cuantos dias terminaras la obra?

What is 1/2 x (6 x 4)+3 + 2 show your work

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

How do you find the circumfrance of a circle?